Consider the following statement - 1. The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the current coil. 2. The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the voltage coil circuit.

Measurement and Instrumentation
Consider the following statement - 1. The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the current coil. 2. The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the voltage coil circuit.

Both 1 and 2 are true.

1 is false but 2 is true.

1 is true but 2 is false.

Both 1 and 2 are false.

Both 1 and 2 are true.

1 is false but 2 is true.

1 is true but 2 is false.

Both 1 and 2 are false.

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Measurement and Instrumentation
A moving coil of a meter has 100 turns, and a length and depth of 10 mm and 20 mm respectively. It is postioned in a uniform radial flux density of 200 mT. The coil carries a current of 50 mA. The torque on the coil is

2 Nm.

100 Nm.

1 Nm.

200 Nm.

2 Nm.

100 Nm.

1 Nm.

200 Nm.

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Measurement and Instrumentation
For measurement on high voltage capacitors, the suitable bridge is

Schering bridge

Any of the listed here

Wein bridge

Modified De santy's bridge

Schering bridge

Any of the listed here

Wein bridge

Modified De santy's bridge

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Measurement and Instrumentation
In AC circuits, the connection of measuring instruments cause loading effect errors which may effect

both of above.

magnitude, phase and waveform of the quantity being measured.

only the magnitude of the quantity being measured.

only phase of the quantity being measured.

both of above.

magnitude, phase and waveform of the quantity being measured.

only the magnitude of the quantity being measured.

only phase of the quantity being measured.

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Measurement and Instrumentation
A metal strain gauge has a gauge factor of two. Its nominal resistance is 120 ohms. If it undergoes a strain of 10-5, the value of change of resistance in response to the strain is

0.0012 Ohm.

120 Ohm.

240 Ohm.

0.0024 Ohm.

0.0012 Ohm.

120 Ohm.

240 Ohm.

0.0024 Ohm.

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Measurement and Instrumentation
The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the operating field of the instrument and stray fields are

parallel.

inclined at 30o.

inclined at 60o.

perpendicular.

parallel.

inclined at 30o.

inclined at 60o.

perpendicular.

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Measurement and Instrumentation

Measurement and Instrumentation A moving coil of a meter has 100 turns, and a length and depth of 10 mm and 20 mm respectively. It is postioned in a uniform radial flux density of 200 mT. The coil carries a current of 50 mA. The torque on the coil is

Measurement and Instrumentation For measurement on high voltage capacitors, the suitable bridge is

Measurement and Instrumentation In AC circuits, the connection of measuring instruments cause loading effect errors which may effect

Measurement and Instrumentation A metal strain gauge has a gauge factor of two. Its nominal resistance is 120 ohms. If it undergoes a strain of 10-5, the value of change of resistance in response to the strain is

Measurement and Instrumentation The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the operating field of the instrument and stray fields are

Measurement and Instrumentation
A moving coil of a meter has 100 turns, and a length and depth of 10 mm and 20 mm respectively. It is postioned in a uniform radial flux density of 200 mT. The coil carries a current of 50 mA. The torque on the coil is

Measurement and Instrumentation
For measurement on high voltage capacitors, the suitable bridge is

Measurement and Instrumentation
In AC circuits, the connection of measuring instruments cause loading effect errors which may effect

Measurement and Instrumentation
A metal strain gauge has a gauge factor of two. Its nominal resistance is 120 ohms. If it undergoes a strain of 10-5, the value of change of resistance in response to the strain is

Measurement and Instrumentation
The effect of stray magnetic fields on the actuating torque of a portable instrument is maximum when the operating field of the instrument and stray fields are